E1-RS232 Converter

     This interface converter is based on FPGA, providing one E1 interface and one RS232 serial interface, 1Channel RS232 transmission via the E1 interface. The product breaks through contradictions between traditional serial interface communication distance and communication rate, besides, it also can solve electromagnetic interference, ground ring interference, and lightning damage. The device greatly improves the reliability, security, and confidentiality of data communication. It is widely used for various industrial control, process control, and traffic control occasions, especially for banks, power, and other sectors and systems which have special requirements of electromagnetic interference environment. The serial interface communication rate is up to 512KBPS.

●Based on self-copyright IC
●Have the ability to automatically detect the baud rate of serial port signal
●Automatically test the reason for the device matt is that the device is powered off, or the E1 line is broken. And then indicate on the LED.
●Serial port interface lightning-protection reached IEC61000-4-5 (8/20μS) DM(Differential Mode): 6KV,    Impedance (2 Ohm),CM(Common Mode): 6KV, Impedance (2 Ohm) standard
●Provide 2 impedances: 75 Ohm unbalance and 120 Ohm balance;
●Serial channel can transmit adaptable serial data asynchronously at 300 Kbps-921.6Kbps baud rate 
●Serial data multiplexing in E1 support ITU-T R.111 jumping coding mode

E1 interface 
Interface Standard: comply with protocol G.703;
Interface Rate: 2048Kbps±50ppm;
Interface Code: HDB3;
Impedance: 75Ω (unbalance), 120Ω (balance);
Jitter tolerance: In accord with protocol G.742 and G.823
Allowed Attenuation: 0~6dBm
Serial interface 
Standard
    EIA/TIA-232 RS-232 (ITU-T V.28)
    Serial Interface
    RS-232: RXD, TXD, Signal Ground
Working environment
Working temperature: -10°C ~ 50°C
Working Humidity: 5%~95 % (no condensation)
Storage temperature: -40°C ~ 80°C
Storage Humidity: 5%~95 % (no condensation)